by using end this make your pic to stop or goto lalaland IMHO.

what about
Code:
DEFINE OSC 20 ' Set the Xtal frequency to 20mHz

ADCON1 = 7 ' Set Analog pins to Digital.
TRISA = 0 ' Set all PortA Pins as output
RFVDDPin VaR PORTA.3 ' RF Module Power Pin.


Main:
    high RFVDDPin ' Switch RF Module On.
here:
     goto here
also be sure you set the oscillator configuration fuse to HS.